Factorise completely a). 3xy - 9x b). x² - 4 c). 2x² + 5y + 1

1 answer:

8 0

Answer:

a) 3x(y-3)

b) (x-2)(X+2)

Step-by-step explanation:

See the steps below:) You can also use the app photo math, you take a picture and it will give you the answer and explain the steps:)

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Factorise completely a). 3xy - 9x b). x² - 4 c). 2x² + 5y + 1​